Scroll compressor ESH Tandem - ESH725(B)Y + ESH736(B)Y

BITZER offers kits for tandem units for parallel operations. They consist of two compressors connected in parallel and provide significant benefits over individual compressors with the same output. The compound compressor units are distinguished by groundbreaking technical features, extraordinarily high energy efficiency and reliability.

Efficient capacity control through pairs of compressors with equal and unequal displacements
Optimised pressure and suction pipe arrangement in combined compressor unit
Reliable oil and gas equalisation
Solid frame construction for low vibration levels
Compressor with Rotalock or direct brazing connections
Suitable for the refrigerants R134a, R407C, R404A, R507A and R22

Performance data
Technical data

With R134a (Polyolester oil BSE35K required.)

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH725(B)Y + ESH736(B)Y	30	Qo	61100	55800	51000	46500	38400	31500	25600	20550
	30	Pe	7,67	7,59	7,52	7,46	7,38	7,32	7,29	7,27
	40	Qo	55100	50400	45950	41850	34550	28300	22900	18320
	40	Pe	9,37	9,34	9,31	9,27	9,19	9,12	9,07	9,04
	50	Qo	48950	44700	40800	37150	30600	25000	20150	16080
	50	Pe	11,56	11,54	11,51	11,48	11,39	11,33	11,33	11,43

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

With R407C (Polyolester oil BSE35K required.)

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH725(B)Y + ESH736(B)Y	30	Qo	89300	81800	74800	68300	56700	46700	38200	30900
	30	Pe	10,24	10,19	10,17	10,15	10,16	10,18	10,20	10,18
	40	Qo	79900	73100	66800	61000	50500	41500	33800
	40	Pe	13,02	13,01	13,01	13,01	13,04	13,05	13,02
	50	Qo	70100	64200	58600	53400	44100	36100
	50	Pe	16,67	16,68	16,68	16,68	16,67	16,59

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Saturated suction and discharge temperatures are based on dew point temperatures (according to EN 12900).

With R404A / R507A (Polyolester oil BSE35K required.)

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH725(B)Y + ESH736(B)Y	30	Qo				76000	64100	53800	44850	37100
	30	Pe				12,19	12,25	12,26	12,22	12,15
	40	Qo			71700	66000	55700	46700	38900	32150
	40	Pe			15,48	15,49	15,50	15,46	15,41	15,33
	50	Qo			60500	55700	47050	39450	32800	27050
	50	Pe			19,50	19,48	19,44	19,38	19,30	19,22

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Data are valid for R404A. Slight variations have to be considered for R507A

With R22

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH725(B)Y + ESH736(B)Y	30	Qo	87800	80900	74500	68500	57700	48350	40100	33000
	30	Pe	10,86	10,80	10,76	10,74	10,74	10,77	10,81	10,84
	40	Qo	79700	73400	67600	62100	52200	43550	35950
	40	Pe	13,54	13,53	13,53	13,53	13,56	13,60	13,61
	50	Qo	71500	65900	60600	55600	46600	38650
	50	Pe	16,83	16,84	16,86	16,87	16,89	16,88

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Compressor type	Dis place-ment 50 Hz	Oil charge	Weight	Pipe connections				Motor	Electrical Data			Assembly kit no.
	Dis place-ment 50 Hz	Oil charge	Weight	Discharge line (DL)		Suction line (SL)			max. workingcurrent	max. power con-sumption	Starting currentRLA	Rotalock version	Version "B"
	m3/h	dm3	kg	mm	inch	mm	inch		Amp	kW	Amp	Rotalock version	Version "B"
ESH725(B)Y + ESH736(B)Y	61	8,0	184	28	1 1/8	42	1 5/8	380..420 V/3/50 Hz 440..480 V/3/60 Hz	17 + 24,5	9,8 + 14,2	95 + 134	35810501	35810601

Scroll Compressors ESH Tandem - ESH725(B)Y + ESH736(B)Y

Scroll compressor ESH Tandem - ESH725(B)Y + ESH736(B)Y

With R134a (Polyolester oil BSE35K required.)

With R407C (Polyolester oil BSE35K required.)

With R404A / R507A (Polyolester oil BSE35K required.)

With R22